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            <div><h3 class="title">
                <a name="asio.reference.system_context"></a><a class="link" href="system_context.html"
                                                               title="system_context">system_context</a>
            </h3></div>
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    <p>
        <a class="indexterm" name="asio.indexterm.system_context"></a>
    </p>
    <p>
        The executor context for the system executor.
    </p>
    <pre class="programlisting"><span class="keyword">class</span> <span class="identifier">system_context</span> <span
            class="special">:</span>
  <span class="keyword">public</span> <span class="identifier">execution_context</span>
</pre>
    <h5>
        <a name="asio.reference.system_context.h0"></a>
        <span><a name="asio.reference.system_context.types"></a></span><a class="link"
                                                                          href="system_context.html#asio.reference.system_context.types">Types</a>
    </h5>
    <div class="informaltable">
        <table class="table">
            <colgroup>
                <col>
                <col>
            </colgroup>
            <thead>
            <tr>
                <th>
                    <p>
                        Name
                    </p>
                </th>
                <th>
                    <p>
                        Description
                    </p>
                </th>
            </tr>
            </thead>
            <tbody>
            <tr>
                <td>
                    <p>
                        <a class="link" href="system_context/executor_type.html"
                           title="system_context::executor_type"><span
                                class="bold"><strong>executor_type</strong></span></a>
                    </p>
                </td>
                <td>
                    <p>
                        The executor type associated with the context.
                    </p>
                </td>
            </tr>
            <tr>
                <td>
                    <p>
                        <a class="link" href="system_context/fork_event.html" title="system_context::fork_event"><span
                                class="bold"><strong>fork_event</strong></span></a>
                    </p>
                </td>
                <td>
                    <p>
                        Fork-related event notifications.
                    </p>
                </td>
            </tr>
            </tbody>
        </table>
    </div>
    <h5>
        <a name="asio.reference.system_context.h1"></a>
        <span><a name="asio.reference.system_context.member_functions"></a></span><a class="link"
                                                                                     href="system_context.html#asio.reference.system_context.member_functions">Member
        Functions</a>
    </h5>
    <div class="informaltable">
        <table class="table">
            <colgroup>
                <col>
                <col>
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            <thead>
            <tr>
                <th>
                    <p>
                        Name
                    </p>
                </th>
                <th>
                    <p>
                        Description
                    </p>
                </th>
            </tr>
            </thead>
            <tbody>
            <tr>
                <td>
                    <p>
                        <a class="link" href="system_context/get_executor.html"
                           title="system_context::get_executor"><span class="bold"><strong>get_executor</strong></span></a>
                    </p>
                </td>
                <td>
                    <p>
                        Obtain an executor for the context.
                    </p>
                </td>
            </tr>
            <tr>
                <td>
                    <p>
                        <a class="link" href="system_context/join.html" title="system_context::join"><span class="bold"><strong>join</strong></span></a>
                    </p>
                </td>
                <td>
                    <p>
                        Join all threads in the system thread pool.
                    </p>
                </td>
            </tr>
            <tr>
                <td>
                    <p>
                        <a class="link" href="system_context/notify_fork.html" title="system_context::notify_fork"><span
                                class="bold"><strong>notify_fork</strong></span></a>
                    </p>
                </td>
                <td>
                    <p>
                        Notify the execution_context of a fork-related event.
                    </p>
                </td>
            </tr>
            <tr>
                <td>
                    <p>
                        <a class="link" href="system_context/stop.html" title="system_context::stop"><span class="bold"><strong>stop</strong></span></a>
                    </p>
                </td>
                <td>
                    <p>
                        Signal all threads in the system thread pool to stop.
                    </p>
                </td>
            </tr>
            <tr>
                <td>
                    <p>
                        <a class="link" href="system_context/stopped.html" title="system_context::stopped"><span
                                class="bold"><strong>stopped</strong></span></a>
                    </p>
                </td>
                <td>
                    <p>
                        Determine whether the system thread pool has been stopped.
                    </p>
                </td>
            </tr>
            <tr>
                <td>
                    <p>
                        <a class="link" href="system_context/_system_context.html"
                           title="system_context::~system_context"><span
                                class="bold"><strong>~system_context</strong></span></a> <span class="silver">[destructor]</span>
                    </p>
                </td>
                <td>
                    <p>
                        Destructor shuts down all threads in the system thread pool.
                    </p>
                </td>
            </tr>
            </tbody>
        </table>
    </div>
    <h5>
        <a name="asio.reference.system_context.h2"></a>
        <span><a name="asio.reference.system_context.protected_member_functions"></a></span><a class="link"
                                                                                               href="system_context.html#asio.reference.system_context.protected_member_functions">Protected
        Member Functions</a>
    </h5>
    <div class="informaltable">
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            <colgroup>
                <col>
                <col>
            </colgroup>
            <thead>
            <tr>
                <th>
                    <p>
                        Name
                    </p>
                </th>
                <th>
                    <p>
                        Description
                    </p>
                </th>
            </tr>
            </thead>
            <tbody>
            <tr>
                <td>
                    <p>
                        <a class="link" href="system_context/destroy.html" title="system_context::destroy"><span
                                class="bold"><strong>destroy</strong></span></a>
                    </p>
                </td>
                <td>
                    <p>
                        Destroys all services in the context.
                    </p>
                </td>
            </tr>
            <tr>
                <td>
                    <p>
                        <a class="link" href="system_context/shutdown.html" title="system_context::shutdown"><span
                                class="bold"><strong>shutdown</strong></span></a>
                    </p>
                </td>
                <td>
                    <p>
                        Shuts down all services in the context.
                    </p>
                </td>
            </tr>
            </tbody>
        </table>
    </div>
    <h5>
        <a name="asio.reference.system_context.h3"></a>
        <span><a name="asio.reference.system_context.friends"></a></span><a class="link"
                                                                            href="system_context.html#asio.reference.system_context.friends">Friends</a>
    </h5>
    <div class="informaltable">
        <table class="table">
            <colgroup>
                <col>
                <col>
            </colgroup>
            <thead>
            <tr>
                <th>
                    <p>
                        Name
                    </p>
                </th>
                <th>
                    <p>
                        Description
                    </p>
                </th>
            </tr>
            </thead>
            <tbody>
            <tr>
                <td>
                    <p>
                        <a class="link" href="system_context/add_service.html" title="system_context::add_service"><span
                                class="bold"><strong>add_service</strong></span></a>
                    </p>
                </td>
                <td>
                    <p>
                        (Deprecated: Use make_service().) Add a service object to the execution_context.
                    </p>
                </td>
            </tr>
            <tr>
                <td>
                    <p>
                        <a class="link" href="system_context/has_service.html" title="system_context::has_service"><span
                                class="bold"><strong>has_service</strong></span></a>
                    </p>
                </td>
                <td>
                    <p>
                        Determine if an execution_context contains a specified service
                        type.
                    </p>
                </td>
            </tr>
            <tr>
                <td>
                    <p>
                        <a class="link" href="system_context/make_service.html"
                           title="system_context::make_service"><span class="bold"><strong>make_service</strong></span></a>
                    </p>
                </td>
                <td>
                    <p>
                        Creates a service object and adds it to the execution_context.
                    </p>
                </td>
            </tr>
            <tr>
                <td>
                    <p>
                        <a class="link" href="system_context/use_service.html" title="system_context::use_service"><span
                                class="bold"><strong>use_service</strong></span></a>
                    </p>
                </td>
                <td>
                    <p>
                        Obtain the service object corresponding to the given type.
                    </p>
                </td>
            </tr>
            </tbody>
        </table>
    </div>
    <h5>
        <a name="asio.reference.system_context.h4"></a>
        <span><a name="asio.reference.system_context.requirements"></a></span><a class="link"
                                                                                 href="system_context.html#asio.reference.system_context.requirements">Requirements</a>
    </h5>
    <p>
        <span class="emphasis"><em>Header: </em></span><code class="literal">asio/system_context.hpp</code>
    </p>
    <p>
        <span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code>
    </p>
</div>
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            <div class="copyright-footer">Copyright © 2003-2022 Christopher M. Kohlhoff<p>
                Distributed under the Boost Software License, Version 1.0. (See accompanying
                file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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